Most systems maintain 80% capacity after 6,000 cycles – that's over 15 years of daily use! Can I expand capacity later? Absolutely! The modular design allows adding battery packs like Lego blocks. Remember: Always consult certified installers when modifying system configuration.
So, at some point, the DC current from your panels needs to be inverted into an AC current before powering your home – but exactly when and how many times the current is inverted depends on the type of battery you have.